10th generation (FC/FK) · 2016–2021 · Compact sedan, coupe, and hatchback
2021 Honda Civic parts and specs
Everything you need to own and maintain this exact model year. Verified specifications, part numbers, and the problems that recur, in one place.
Last verified
Quick facts
Specifications for the 2016–2021 Civic
Oil & filter
Viscosity, capacity, filter part numbers, change interval
Battery
BCI group size, cold cranking amps, AGM or flooded
Tires & wheels
Factory sizes by trim, pressures, bolt pattern, lug torque
Wiper blades
Driver, passenger and rear blade lengths
Air & cabin filters
Cabin and engine air filter part numbers, locations, intervals
Bulbs
Headlight, fog and marker bulb types
Brakes
Rotor diameters, pad references, service notes
Fluids
Transmission fluid, coolant, brake fluid and capacities
Service schedule
What's actually due at every mileage interval
Problems & reliability
Documented failures, recalls, and which years to avoid
Oil light reset
Step-by-step maintenance light reset, no tools
Key fob battery
Which coin cell the remote takes
Specs
Towing, weight, fuel tank, fuel economy
These specifications are shared across every Civic of the 10th generation (FC/FK) generation. See the 2016–2021 Honda Civic overview for the full picture, or the Honda Civic guide to compare every generation.
What changed for the 2021 Honda Civic
- 2021Final year; sedan/hatch only (coupe dropped after 2020, no 2021 Si)
Known problems with the 2021 Honda Civic
1 of the 6 issues we track for the 2016–2021 generation is documented against the 2021 model year, and 1 carries a recall or service bulletin.
AC condenser refrigerant leak (10-year warranty extension)
moderateHonda TSB 19-091 (Dec 2019 warranty extension)The AC condenser develops pinhole leaks from a manufacturing defect, the AC gradually blows warm, usually out of warranty. After a class action, Honda extended condenser coverage to 10 years from original purchase with no mileage limit (TSB 19-091) for 2016–2018 US cars (Canada extended 2018–2020 too), including reimbursement for prior repairs. Road-debris damage is excluded.
Typical cost: Free under warranty extension; $600–$1,000 otherwise (condenser + refrigerant)
5 more issues reported in other 2016–2021 years
- 1.5T oil dilution, gas in the oil (cold climates) — 2016–2018 (1.5T; improved but not unheard-of on 2019+)
- Denso fuel pump can fail, engine stall (recalls) — 2018–2020
- 2016 piston pin snap ring recall (engine stall/failure) — 2016 (2.0L, specific VINs)
- 2016 electric parking brake may not engage (recall) — 2016
- Infotainment freezes, Bluetooth drops, backup-camera glitches — 2016–2018
Full detail, costs and sources on the Honda Civic problems and years to avoid guide.
Which engines were offered in the 2021 Civic?
| Engine | Trims | Oil | Oil capacity |
|---|---|---|---|
| 2.0L 4-cylinder (K20C2) | LX, Sport sedan/coupe (6MT or CVT) | 0W-20 | 4.4 qt |
| 1.5L turbo 4-cylinder (L15B7) | EX, EX-T, EX-L, Touring sedan/coupe (174 hp); hatchback LX–EX-L (174 hp), hatch Sport/Sport Touring (180 hp) | 0W-20 | 3.7 qt |
| 2.0L turbo (K20C1, Civic Type R FK8) | Type R hatchback, 2017–2021 (6-speed manual only) | 0W-20 | 5.7 qt |
About the Honda Civic
The Honda Civic is the best-selling compact car in America, and the 2012–2025 span covers three mechanically distinct generations that all take 0W-20 oil, a Group 51R battery, and the same ubiquitous 15400-PLM-A02 spin-on oil filter. 4L K24 Si. Cheap to run, with AC compressor clutches and front engine mounts as the main wear items.
5T L15B7 brought big fuel economy but also documented cold-climate oil dilution (2016–2018, warranty-extended) and a leak-prone AC condenser that Honda covers for 10 years under TSB 19-091; 2018–2020 cars are also caught in the giant Denso fuel-pump recalls (20V-314/23V-858). 5T, adds a 200-hp hybrid for 2025, and its one headline defect. 'sticky steering', was fixed by recall 24V-744 in late 2024.
Unlike fixed-interval brands, every modern Civic uses Honda's Maintenance Minder: the car computes oil life itself (typically 7,500–10,000 miles per change) and displays codes (A/B plus sub-codes) telling you exactly what's due, so owners constantly look up what the codes mean, which oil to buy (always 0W-20 for these years), and how to reset the wrench light.
For how the specifications changed across every generation, see the full Honda Civic guide.
Other Honda Civic years
Sources
- Motivx Tools, 2016–2018 Civic oil change guide (capacities by engine)
- AMSOIL product application guide, 2017 Civic 1.5L L15B7
- Honda parts, 17220-5AA-A00 (1.5T) and 17220-5BA-A00 (2.0L) air filters
- Honda parts, 12290-59B-003 spark plug (NGK ILZKAR8H8S), 2016–2021 Civic 1.5T
- Honda parts, 15400-PLM-A02 oil filter
- NHTSA recall 20V-314, Denso fuel pump (Part 573 report)
- NHTSA recall 23V-858, expanded fuel pump recall (Part 573 report)
- NHTSA, 2016 Civic piston pin snap ring recall 16V-074 / SB 16-017
- Honda TSB 19-091, AC condenser 10-year warranty extension (NHTSA copy)
- WardsAuto, Honda extends warranty for 1.5L oil dilution (Civic/CR-V)
- TirePressure.org, 2017 Honda Civic placard pressures by trim
- fueleconomy.gov, 2017 Honda Civic EPA ratings
- CivicX forum, brake rotor/caliper dimensions by trim
- Interstate Batteries, 2017/2019 Civic Group 51R fitment